mxolisi mtshali

I’m a Senior Platform/DevOps Engineer with 6+ years delivering enterprise DevOps, cloud infrastructure, CI/CD automation, and Kubernetes-based platform solutions in large-scale environments. I focus on scalable delivery pipelines that improve deployment reliability and operational stability.

In my current role, I design and implement enterprise GitLab CI/CD pipelines to automate build, testing, deployment, and release workflows across multiple environments. I’ve led migration of legacy CI/CD from Bitbucket and Bamboo to GitLab, improving governance, deployment consistency, and operational efficiency, while building Docker and Kaniko container pipelines for Kubernetes-based deployments.

I implement GitOps deployment practices using ArgoCD to increase release traceability, rollback capability, and deployment consistency. I also support Kubernetes operations end-to-end—troubleshooting pod failures, ingress routing and deployment failures, OOM events, readiness/liveness probe issues, node resource constraints, and scheduling problems—using kubectl for real-time incident diagnosis and root-cause analysis.

I integrate DevSecOps into delivery by adding SonarQube quality gates, automated security scanning, and CI/CD governance controls, along with Trivy and Gitleaks for vulnerability management and secret detection. I build observability platforms with Prometheus, Grafana, and the ELK Stack, automate schema migrations with Liquibase, and support secure platform integrations using Keycloak with HAProxy and Nginx. Earlier, at CSIR, I built and operated OpenStack-based private cloud platforms, designed SDN environments, contributed to Open5G research testbeds, and strengthened infrastructure automation and networking expertise applicable to AWS, VPC, routing, and segmentation.